feat: allow string type in gt/lt expectations

src/Mixins/Expectation.php

@@ -131,7 +131,7 @@ final class Expectation
      *
      * @return self<TValue>
      */
-    public function toBeGreaterThan(int|float|DateTimeInterface $expected, string $message = ''): self
+    public function toBeGreaterThan(int|float|string|DateTimeInterface $expected, string $message = ''): self
     {
         Assert::assertGreaterThan($expected, $this->value, $message);
 
@@ -143,7 +143,7 @@ final class Expectation
      *
      * @return self<TValue>
      */
-    public function toBeGreaterThanOrEqual(int|float|DateTimeInterface $expected, string $message = ''): self
+    public function toBeGreaterThanOrEqual(int|float|string|DateTimeInterface $expected, string $message = ''): self
     {
         Assert::assertGreaterThanOrEqual($expected, $this->value, $message);
 
@@ -155,7 +155,7 @@ final class Expectation
      *
      * @return self<TValue>
      */
-    public function toBeLessThan(int|float|DateTimeInterface $expected, string $message = ''): self
+    public function toBeLessThan(int|float|string|DateTimeInterface $expected, string $message = ''): self
     {
         Assert::assertLessThan($expected, $this->value, $message);
 
@@ -167,7 +167,7 @@ final class Expectation
      *
      * @return self<TValue>
      */
-    public function toBeLessThanOrEqual(int|float|DateTimeInterface $expected, string $message = ''): self
+    public function toBeLessThanOrEqual(int|float|string|DateTimeInterface $expected, string $message = ''): self
     {
         Assert::assertLessThanOrEqual($expected, $this->value, $message);
 

tests/.snapshots/success.txt

@@ -426,6 +426,7 @@
    PASS  Tests\Features\Expect\toBeGreaterThan
   ✓ passes
   ✓ passes with DateTime and DateTimeImmutable
+  ✓ passes with strings
   ✓ failures
   ✓ failures with custom message
   ✓ not failures
@@ -433,6 +434,7 @@
    PASS  Tests\Features\Expect\toBeGreaterThanOrEqual
   ✓ passes
   ✓ passes with DateTime and DateTimeImmutable
+  ✓ passes with strings
   ✓ failures
   ✓ failures with custom message
   ✓ not failures
@@ -490,6 +492,7 @@
    PASS  Tests\Features\Expect\toBeLessThan
   ✓ passes
   ✓ passes with DateTime and DateTimeImmutable
+  ✓ passes with strings
   ✓ failures
   ✓ failures with custom message
   ✓ not failures
@@ -497,6 +500,7 @@
    PASS  Tests\Features\Expect\toBeLessThanOrEqual
   ✓ passes
   ✓ passes with DateTime and DateTimeImmutable
+  ✓ passes with strings
   ✓ failures
   ✓ failures with custom message
   ✓ not failures

tests/Features/Expect/toBeGreaterThan.php

@@ -16,6 +16,11 @@ test('passes with DateTime and DateTimeImmutable', function () {
     expect($past)->not->toBeGreaterThan($now);
 });
 
+test('passes with strings', function () {
+    expect('b')->toBeGreaterThan('a');
+    expect('a')->not->toBeGreaterThan('a');
+});
+
 test('failures', function () {
     expect(4)->toBeGreaterThan(4);
 })->throws(ExpectationFailedException::class);

tests/Features/Expect/toBeGreaterThanOrEqual.php

@@ -18,6 +18,11 @@ test('passes with DateTime and DateTimeImmutable', function () {
     expect($past)->not->toBeGreaterThanOrEqual($now);
 });
 
+test('passes with strings', function () {
+    expect('b')->toBeGreaterThanOrEqual('a');
+    expect('a')->toBeGreaterThanOrEqual('a');
+});
+
 test('failures', function () {
     expect(4)->toBeGreaterThanOrEqual(4.1);
 })->throws(ExpectationFailedException::class);

tests/Features/Expect/toBeLessThan.php

@@ -16,6 +16,11 @@ test('passes with DateTime and DateTimeImmutable', function () {
     expect($now)->not->toBeLessThan($now);
 });
 
+test('passes with strings', function () {
+    expect('a')->toBeLessThan('b');
+    expect('a')->not->toBeLessThan('a');
+});
+
 test('failures', function () {
     expect(4)->toBeLessThan(4);
 })->throws(ExpectationFailedException::class);

tests/Features/Expect/toBeLessThanOrEqual.php

@@ -18,6 +18,11 @@ test('passes with DateTime and DateTimeImmutable', function () {
     expect($now)->not->toBeLessThanOrEqual($past);
 });
 
+test('passes with strings', function () {
+    expect('a')->toBeLessThanOrEqual('b');
+    expect('a')->toBeLessThanOrEqual('a');
+});
+
 test('failures', function () {
     expect(4)->toBeLessThanOrEqual(3.9);
 })->throws(ExpectationFailedException::class);